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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b5ab91f8a4a49e36e1723653698263a376e47ae84ad8cfdf0d862cdef3ac4633. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


GuLoader


Vendor detections: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b5ab91f8a4a49e36e1723653698263a376e47ae84ad8cfdf0d862cdef3ac4633
SHA3-384 hash: 48a9b4d19391fc640e95073839d2a766585c4571ffd583290cecf39633041a8f42f39b1de800146bdbb921397af43df9
SHA1 hash: 0f6fd3922de6d8019d8316a76bfac9fabb1b1003
MD5 hash: c708d56076c92147694e56d8c065d4f9
humanhash: three-texas-mango-georgia
File name:PO-5363663666.lzh
Download: download sample
Signature GuLoader
Create hunting rule
File size:818'402 bytes
First seen:2026-05-20 18:08:16 UTC
Last seen:Never
File type: lzh
MIME type:application/x-lzh-compressed
ssdeep 24576:S7bGFvHafaq0KgMeFt29AXD0OY7d7KPvB+Yk3JKD:S7SF/PtFh0hIa3JKD
TLSH T1AD0533416DA25894C48920380CE0298ACE45505AFBBFCB1BD3F3F397BC4D159E9D6B6E
Magika lha
Reporter TomU
Tags:GuLoader lzh

Intelligence

File Origin
# of uploads :
1
# of downloads :
22
Origin country :
CH CH
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:PO-5363663666.exe
File size:846'408 bytes
SHA256 hash: 8fd94a0d9730a5a696e1056495b28ef5ca118f94c92c18f6b757369bd3de5ada
MD5 hash: fa0818e29653113c8fbfb4dea361e1e4
MIME type:application/x-dosexec
Signature GuLoader
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.29174.LZHHeur.Exe.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a0e13ba4f2b29ce04021a8b
Tags:
infosteal nsis
Verdict:
Suspicious
Labled as:
Mal/DrodLzh
Link:
https://www.hybrid-analysis.com/sample/b5ab91f8a4a49e36e1723653698263a376e47ae84ad8cfdf0d862cdef3ac4633
Verdict:
Malicious
File Type:
lha
First seen:
2025-09-01T03:13:00Z UTC
Last seen:
2026-05-22T00:02:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/b5ab91f8a4a49e36e1723653698263a376e47ae84ad8cfdf0d862cdef3ac4633/results?tab=lookup
Score:
93%
Verdict:
Malware
File Type:
ARCHIVE
Link:
https://malprob.io/report/b5ab91f8a4a49e36e1723653698263a376e47ae84ad8cfdf0d862cdef3ac4633
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b5ab91f8a4a49e36e1723653698263a376e47ae84ad8cfdf0d862cdef3ac4633/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2025-09-01 09:58:31 UTC
File Type:
Binary (Archive)
Extracted files:
23
AV detection:
18 of 38 (47.37%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wwvzd6feuspdnylsgzjwtatdun3oi6xijlmm7xynqywn545miyzq._file
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b5ab91f8a4a49e36e1723653698263a376e47ae84ad8cfdf0d862cdef3ac4633

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:Detect_NSIS_Nullsoft_Installer
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects NSIS installers by .ndata section + NSIS header string
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

GuLoader

lzh b5ab91f8a4a49e36e1723653698263a376e47ae84ad8cfdf0d862cdef3ac4633

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments